Submission #3333118
Source Code Expand
#include<stdio.h>
#include<map>
using namespace std;
map<int,map<int,int> >mp,vis;
int a[100010],b[100010];
bool ex(int x,int y){
return mp.count(x)&&mp[x].count(y);
}
int main(){
int n,i,j,s,las,now;
scanf("%d",&n);
#define wa {puts("-1");return 0;}
for(i=1;i<=n;i++){
scanf("%d%d",a+i,b+i);
if(i!=1&&a[i]==0)wa
if(i!=2&&b[i]==0)wa
mp[a[i]][b[i]]++;
}
for(i=1;i<=n;i++){
if(i!=2){
if(!(ex(a[i]-1,b[i]-1)||ex(a[i],b[i]-1)||ex(a[i]+1,b[i]-1)))wa
}
if(i!=1){
if(!(ex(a[i]-1,b[i]+1)||ex(a[i]-1,b[i])||ex(a[i]-1,b[i]-1)))wa
}
}
s=0;
for(i=1;i<=n;i++){
if(!ex(a[i]-1,b[i]+1)&&!vis[a[i]][b[i]]){
if(a[i]==3&&b[i]==5){
i++;
i--;
}
vis[a[i]][b[i]]=1;
las=0;
for(j=0;ex(a[i]+j,b[i]-j);j++){
now=mp[a[i]+j][b[i]-j];
s+=min(las,now);
now-=min(las,now);
if(ex(a[i]+j-1,b[i]-j-1)){
s+=now;
now=min(las,mp[a[i]+j][b[i]-j]);
}else
now=mp[a[i]+j][b[i]-j];
las=now;
}
}
}
printf("%d",2*n-2-s);
}
Submission Info
Submission Time
2018-10-05 10:35:05+0900
Task
A - Distance Pairs
User
jefflyy
Language
C++14 (GCC 5.4.1)
Score
1500
Code Size
1030 Byte
Status
AC
Exec Time
358 ms
Memory
29184 KB
Compile Error
./Main.cpp: In function ‘int main()’:
./Main.cpp:11:16: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d",&n);
^
./Main.cpp:14:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d",a+i,b+i);
^
Judge Result
Set Name
sample
All
Score / Max Score
0 / 0
1500 / 1500
Status
Set Name
Test Cases
sample
sample-01.txt, sample-02.txt
All
sample-01.txt, sample-02.txt, 01-01.txt, 01-02.txt, 01-03.txt, 01-04.txt, 01-05.txt, 01-06.txt, 01-07.txt, 01-08.txt, 01-09.txt, 01-10.txt, 01-11.txt, 01-12.txt, 01-13.txt, 01-14.txt, 01-15.txt, 01-16.txt, 01-17.txt, 01-18.txt, 01-19.txt, 01-20.txt, 01-21.txt, 01-22.txt, 01-23.txt, 01-24.txt, 01-25.txt, 01-26.txt, 01-27.txt, 01-28.txt, 01-29.txt, 01-30.txt, 01-31.txt, sample-01.txt, sample-02.txt
Case Name
Status
Exec Time
Memory
01-01.txt
AC
63 ms
11648 KB
01-02.txt
AC
17 ms
1024 KB
01-03.txt
AC
1 ms
256 KB
01-04.txt
AC
1 ms
256 KB
01-05.txt
AC
2 ms
256 KB
01-06.txt
AC
13 ms
640 KB
01-07.txt
AC
76 ms
1408 KB
01-08.txt
AC
59 ms
1280 KB
01-09.txt
AC
35 ms
1152 KB
01-10.txt
AC
23 ms
1024 KB
01-11.txt
AC
76 ms
1280 KB
01-12.txt
AC
69 ms
1280 KB
01-13.txt
AC
317 ms
19712 KB
01-14.txt
AC
243 ms
15104 KB
01-15.txt
AC
358 ms
29184 KB
01-16.txt
AC
19 ms
1024 KB
01-17.txt
AC
20 ms
1024 KB
01-18.txt
AC
20 ms
1024 KB
01-19.txt
AC
281 ms
17408 KB
01-20.txt
AC
202 ms
8448 KB
01-21.txt
AC
206 ms
8576 KB
01-22.txt
AC
153 ms
4736 KB
01-23.txt
AC
33 ms
1280 KB
01-24.txt
AC
42 ms
1280 KB
01-25.txt
AC
14 ms
896 KB
01-26.txt
AC
3 ms
512 KB
01-27.txt
AC
14 ms
896 KB
01-28.txt
AC
12 ms
896 KB
01-29.txt
AC
1 ms
256 KB
01-30.txt
AC
1 ms
256 KB
01-31.txt
AC
1 ms
256 KB
sample-01.txt
AC
1 ms
256 KB
sample-02.txt
AC
1 ms
256 KB